According to a study published in Cancer Epidemiology, Biomarkers & Prevention, men in the United States were more likely than women to receive diagnoses at regional or distant stages for 20 nonreproductive solid cancer types between 2015 and 2022. This finding suggests a potential gap in early detection and healthcare engagement among men, according to the researchers.

Key takeaways

  • Men had higher odds than women of being diagnosed at a regional or distant stage for 20 nonreproductive solid cancers.
  • The study analyzed more than 10 million cancer cases from U.S. cancer registries.
  • Researchers say the findings highlight the need for targeted screening programs and public health campaigns aimed at men.

Understanding the study

The research, published by the American Association for Cancer Research, used data from 2015 to 2022 from population-based cancer registries covering about half of the U.S. population. The team examined diagnoses for 20 types of solid cancers that are not sex-specific, including lung, colorectal, bladder, and melanoma, among others. They compared the stage at diagnosis — localized, regional, or distant — between men and women.

After adjusting for factors such as age, race, and socioeconomic status, men were consistently more likely to be diagnosed when the cancer had already spread regionally or to distant sites. The pattern held across nearly every cancer type studied, though the size of the difference varied. For example, men faced notably higher odds of late-stage diagnosis for thyroid cancer and melanoma, according to the original report.

Possible reasons for the disparity

The study did not investigate why men receive later-stage diagnoses, but the authors suggest several possible explanations. Men may be less likely to participate in routine cancer screenings or to seek medical care for early symptoms. Differences in health literacy, symptom awareness, and social norms around health-seeking behavior could also play a role. Biological factors, such as differences in tumor biology or immune response, cannot be ruled out but were not examined in this analysis.

The original report notes that the pattern was consistent across cancer types and demographic groups, which strengthens the case for systemic rather than cancer-specific causes. Public health strategies that encourage men to attend regular checkups and report concerning symptoms early may help reduce the disparity.

Implications for public health

Earlier detection of cancer generally improves treatment options and survival outcomes. The study’s findings suggest that current screening and awareness efforts may not be reaching men as effectively as women. The researchers call for more tailored public health messaging and for healthcare providers to be especially attentive to subtle signs of cancer in male patients.

Because the study relies on registry data, it cannot prove that being male causes later-stage diagnoses, only that an association exists. Nevertheless, the size and consistency of the pattern across many cancer types make it a robust observation that warrants action, according to the authors.

Frequently asked questions

What types of cancer were included in the study?

The study included 20 nonreproductive solid cancers, meaning cancers that are not specific to male or female reproductive organs. Examples include lung cancer, colorectal cancer, bladder cancer, melanoma, thyroid cancer, and kidney cancer.

How was late-stage cancer defined?

Late-stage was defined as cancer that had spread beyond the organ where it started to nearby lymph nodes (regional stage) or to distant parts of the body (distant stage). Localized cancer, which is contained to the original organ, was considered early stage in this comparison.

Does this mean men have worse cancer outcomes?

The study did not measure survival or death rates, so it cannot directly answer that question. However, later-stage diagnoses are generally associated with poorer prognosis and lower survival rates. The findings suggest that men may be at a disadvantage simply because they are diagnosed later.

This is an original report by Vital Signs Today, informed by reporting from Medical Xpress. Read the original source.

This article is for information only and is not medical advice. See our Medical Disclaimer.